10 41. The hydrofioil boat has an A-36 steel propeller shaftthat is 30 m long, It is connected to an in-line diesel enginethat delivers a maximum power of 2000 kW and causes theshaft to rotate at 1700 rpm. If the outer diameter of theshaft is 200 mm and the wall thickness is 10 mm, determinethe maximum shear stress developed in the shaft. Also, whatis the "wind up," ar angle af twist in the shaft at full power?Co0000000

Given, Length of Shaft (L) = 30 m Power (P)= 2000 kW No. of rotations of shaft = 1700 rpm Outer…

Answered: 10 41. The hydrofioil boat has an A-36…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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A hollow shaft for a rotary compressor is to be designed to transmit a maximum torque of 4750 N-m.The shear stress in the shaft is limited to 50 MPa. Determine the inside and outside diameters of theshaft, if the ratio of the inside to the outside diameter is 0.4. [Ans. 35 mm ; 90 mm]
SS 304 steel shaft is 3 m long and has an outer diameter of60 mm. When it is rotating at 60 rad/s, it transmits 30 kWof power from the engine to the generator. Determine thefollowing: a. The smallest thickness of the shaft if the allowableshear stress is 150 MPa and the shaft is restricted notto twist more than 0.08 rad. Use G for steel = 83 GPa. b. The percentage savings in weight had the generatorutilized a solid shaft. Assume same material, length andtorque capacity.
The propellers of a ship are connected to an A-36 steel shaft that is 60 m long and has an outer diameter of 340 mm and inner diameter of 260 mm. If the power output is 4.5 MW when the shaft rotates at 20 rad>s, determine the maximum torsional stress in the shaft and its angle of twist.
The propellers of a ship are connected to an A-36 steel shaft that is 60 m long and has an outer diameter of 340 mm and inner diameter of 260 mm. If the power output is 4.5 MW when the shaft rotates at 20 rad/s, determine themaximum torsional stress in the shaft and its angle of twist.
The A-36 steel tubular shaft is 2 m long and has an outer diameter of 50 mm. When it is rotating at 40 rad>s, it transmits 25 kW of power from the motor M to the pump P. Determine the smallest thickness of the tube if the allowable shear stress is tallow = 80 MPa.
A solid shaft is transmitting 1 MW at 240 r.p.m. Determine the diameter of the shaft if the maximum torque transmitted exceeds the mean torque by 20%. Take the maximum allowable shear stress as 60 MPa.
A solid shaft is required to transmit 90 kW of power at 200 rpm. Determine the shaft diameter by the strength design and rigidity design and from this design choose the suitable diameter of the shaft, if the permissible stress for the material is 50 N/mm2 and the permissible twist is 10 per meter length. Also, determine the maximum shear strain acting on the shaft.Take modulus of rigidity = 150 GN/m2.
The drive shaft AB of an automobile is to be designed as a thin-walled tube. The engine delivers 150 hp when the shaft is turning at 1000 rev>min. Determine the minimum thickness of the shaft’s wall if the shaft’s outerdiameter is 2.5 in. The material has allowable shear stress of tallow = 7 ksi.
Determine the diameters of a hollow shaft which has to transmit 40 kW at 300rev/min. If the shear stress is limited to 30 MPa. Assume the maximum torque to be 12% greater than the mean torque and that the shaft diameters are in the ratio of 1 to 1, 5.
The shaft is subjected to a distributed torque along its length of t = (10x2) N # m>m, where x is in meters. If the maximum stress in the shaft is to remain constant at 80 MPa, determine the required variation of the radius c of the shaft for 0 ≤ x ≤ 3 m.
The A-36 hollow steel shaft is 2 m long and has an outer diameter of 40 mm. When it is rotating at 80 rad>s, it transmits 32 kW of power from the engine E to the generator G. Determine the smallest thickness of the shaft if the allowable shear stress is tallow = 140 MPa and the shaft is restricted not to twist more than 0.05 rad.
A propeller shaft is required to transmit 45 kW power at 500 rpm. It is a hollow shaft having inside diameter 0.6 times the outer diameter. It is made of plain carbon steel and the permissible shear stress is 84 N/mm^2. Determine the inner and outer diameters of the shaft.

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